Brakes and Traction Control: Technical Service Bulletins

• Customer Interest
  • Brakes - Front Pad Noise, Revised Tab Clinch Procedure
  • Wheel Sensors, Rear - Scrape, Squeal Noises
  • Brakes - (4WAL) Code 66 Set, Antilock Deactivated
  • EHCU - Loss of Power or Ground
  • Brakes - Poor Rotor Finish/Hard Pedal Feel
  • Brakes - Slap, Pop, Clunk, Noise When Releasing Brakes
  • Brakes - Audible ABS Operation At 8 MPH & Accelerating
  • Brakes (ABS) - 'False' or Dropping Pedal
  • ABS (4WAL) - Code 65 Misdiagnosis
• By Symptom
  • Customer Interest
    • Brakes - Front Pad Noise, Revised Tab Clinch Procedure
    • Wheel Sensors, Rear - Scrape, Squeal Noises
    • Brakes - (4WAL) Code 66 Set, Antilock Deactivated
    • EHCU - Loss of Power or Ground
    • Brakes - Poor Rotor Finish/Hard Pedal Feel
    • Brakes - Slap, Pop, Clunk, Noise When Releasing Brakes
    • Brakes - Audible ABS Operation At 8 MPH & Accelerating
    • Brakes (ABS) - 'False' or Dropping Pedal
    • ABS (4WAL) - Code 65 Misdiagnosis
  • Erratic Operation
    • EHCU - Loss of Power or Ground
  • False instrument warning light/gauges
    • ABS - Code 65 Misdiagnosis
    • Brakes - (4WAL) Lamp ON/False Codes Set
    • ABS (4WAL) - Code 65 Misdiagnosis
  • Inoperative
    • Brakes - (4WAL) Code 66 Set, Antilock Deactivated
  • Loose
    • Brakes - Front Pad Noise, Revised Tab Clinch Procedure
  • Low Pedal
    • Brakes (ABS) - 'False' or Dropping Pedal
  • Noise
    • Brakes - Front Pad Noise, Revised Tab Clinch Procedure
    • Wheel Sensors, Rear - Scrape, Squeal Noises
    • Brakes - Slap, Pop, Clunk, Noise When Releasing Brakes
    • Brakes - Audible ABS Operation At 8 MPH & Accelerating
• All Technical Service Bulletins
  • Brakes - Resurfacing Park Brake Portion of Rear Brake Rotor
  • Brake Fluid - Level And Filling Recommendations
  • Brakes - Aftermarket Parking Brake
  • Brakes - Front Pad Noise, Revised Tab Clinch Procedure
  • Speed Sensor Circuit - Primary Malfunction Indicators
  • Wheel Speed Sensor - Codes/False Codes
  • Wheel Sensors, Rear - Scrape, Squeal Noises
  • ABS - Code 65 Misdiagnosis
  • Brakes - (4WAL) Code 66 Set, Antilock Deactivated
  • EHCU - Loss of Power or Ground
  • Brakes - ECU Software Improvement
  • Brakes - (4WAL) Lamp ON/False Codes Set
  • Brakes - Poor Rotor Finish/Hard Pedal Feel
  • Brakes - Change In Brake Feel After Rotor Refinishing
  • Brakes - Rotor & Hub Flange Cleaning Tool Revision
  • Brakes - Slap, Pop, Clunk, Noise When Releasing Brakes
  • ABS - Reading Trouble Codes
  • Rear Wheel Anti-Lock Brakes - Trouble Code 7
  • Brakes - (4WAL) Revised Bleeding Procedure
  • Brakes - (4WAL) Diagnostic Manual Information
    • Overview
    • 1. Introduction
      • Overview
      • 4WAL Components
      • Overview of Operation
    • 2. Operation
      • Hydraulic Parts
      • Electro-Hydraulic Parts
      • Summary of Hydraulic Control Unit Operation
      • Electrical Parts
      • The "Antilock" Light and Brake Light
    • 3. Diagnosis
      • Overview
      • Diagnosis Without Tech 1/Extracting and Clearing Codes
      • Diagnosis With Tech 1
      • Tech 1 Scan Display
      • Diagnostic Circuit Check
      • Antilock Light "On"
      • Antilock Light "Off"
      • Trouble Code Charts
        • Code 21
        • Code 22
        • Code 23
        • Code 25
        • Code 26
        • Code 27
        • Code 28
        • Code 29
        • Code 31
        • Code 32
        • Code 33
        • Code 35
        • Code 36
        • Code 37
        • Code 38
        • Codes 41 to 66 and 71 to 74
        • Code 67
        • Code 68
        • Codes 68,43,44,47,48,53, and 54 Simultaneously
        • Code 81
        • Code 85,86
        • Code 88
      • Symptom Diagnosis
      • Electrical Connectors - M/L-Series and S/T
      • Electrical Circuit Diagram - M/L-Series and S/T
      • Diode Locations - M/L-Series
    • Service Procedures
    • Torque Specifications and Parts Numbers
    • Quick Review of Diagnosis
  • Brakes - (4WAL) Pipe Assemblies - Available
  • ABS - Self Test Initialization Cycle Noise
  • Anti-Lock Brake - Aftermarket Products Usage Precaution
  • Brakes - Audible ABS Operation At 8 MPH & Accelerating
  • Brakes (ABS) - 'False' or Dropping Pedal
  • ABS (4WAL) - Code 65 Misdiagnosis
  • Brakes - Kelsey-Hayes 4WAL/RWAL Assistance Program
  • ABS - Brake Bleeding Procedure
    • Overview
    • Bulletin Description
    • Tools Required
    • Pressure Bleed Procedure
    • Manual Bleed Procedure
    • Warranty Information
  • RWAL Brakes - Revised Code 5 Diagnostic Chart
  • Brakes - Revised 4WAL System Bleeding Procedure
  • Brakes - (4WAL) Trouble Code Clearing
  • Brakes - Revised 4WAL DTC 61, 62 and 63
  • Brake Pressure Modulator Valve - Bleed Procedure
  • Brakes - Modified Brake Bleeding Tool